I need some help which would probably be for most of you a simple script.
I need to read in the data from a .dat file and then compare avg to see who is the highest avg. Here is my script so far.
#!/bin/ksh
#reading in the data from lab3.dat
filename=$1
while read name o1 o2 o3 o4 o5 o6... (0 Replies)
hi,
I want to compare i variable in the awk statement but its not working out. Pl help me out
If we do the comparison like this its OK,
cat sample | awk -F" ", '{if ($1=="1-Sep-2009") print $1,$2,$3,$4,$5}'
But if u use a variable instead of "1-Sept-2009", it does not return anything,... (2 Replies)
Hi all,
I have a variable say var1 (output from somewhere, which I can't change)which store something like this:
echo $var1
name=fred
age=25
address="123 abc"
password=pass1234
how can I make the variable $name, $age, $address and $password contain the info?
I mean do this in a... (1 Reply)
Can anyone help me with this section of code?
The scenario is a value drops from A to B or A to C or B to C.
If it drops from A to B or B to C, we print "Drop one level"
If it drops from A to C, we print "Dropped two levels".
The problem is script is throwing error when comparing variable... (2 Replies)
Hi all,
How I could compare variable and regexp?
For example...
I am running the script ./aaa.sh -b *
* is variable $2 (second argument of script).
I would compare variables $a (generated from my cycle) and $2 as regexp.
I need from regular expression find file that satisfies this regexp.... (1 Reply)
So, I'm making a little awk script that generates a range-based histogram of a set of numbers. I've stumbled onto a strange thing. Toward the end of the process, I have this test:
if ( bindex < s )
"bindex" is the "index" of my "bin" (the array element that gets incremented whenever a... (2 Replies)
Hi All,
I want to compare the variable value with string in a shell script.
my code is:
for var in $packsName
do
if
then
echo $var
fi
done
But I am getting error as:
ABC : not found.
Am I going wrong somwhere?
please guide.
Thanks. (5 Replies)
Hello folks,
I have two files, which have usernames, I want to see the contents of file1.txt which is missing in file2.txt and another comparison file2.txt contents which is missing in file1.txt. please suggest.
file1.txt
user
u2
u8
a9
p9
p3
u4
z8
aaa
ahe
oktlo (7 Replies)
Hi , Need help, p
for value in `awk -F, '{print $1 }' ad | uniq`
do
x=$(echo $value)
echo $x
echo `awk -F, '{if( $1 == $x) sum = sum + $8 } END{print sum}' ad` --- not working
echo `awk -F, '{if($1 == “MT”) sum = sum + $8 } END{print sum}' ad` -- Working but hard coded
done;
ad... (4 Replies)
Discussion started by: nadeemrafikhan
4 Replies
LEARN ABOUT BSD
xargs
XARGS(1) General Commands Manual XARGS(1)NAME
xargs - construct argument list(s) and execute utility
SYNOPSIS
xargs [ -t ][[ -x ] -n number ][ -s size ][ utility [ arguments... ]]
DESCRIPTION
The xargs utility reads space, tab, newline and end-of-file delimited arguments from the standard input and executes the specified utility
with them as arguments.
The utility and any arguments specified on the command line are given to the utility upon each invocation, followed by some number of the
arguments read from standard input. The utility is repeatedly executed until standard input is exhausted.
Spaces, tabs and newlines may be embedded in arguments using single (`` ' '') or double (``"'') quotes or backslashes (``''). Single
quotes escape all non-single quote characters, excluding newlines, up to the matching single quote. Double quotes escape all non-double
quote characters, excluding newlines, up to the matching double quote. Any single character, including newlines, may be escaped by a back-
slash.
The options are as follows:
-n number Set the maximum number of arguments taken from standard input for each invocation of the utility. An invocation of utility will
use less than number standard input arguments if the number of bytes accumulated (see the s option) exceeds the specified size or
there are fewer than number arguments remaining for the last invocation of utility. The current default value for number is
5000.
-s size Set the maximum number of bytes for the command line length provided to utility. The sum of the length of the utility name and
the arguments passed to utility (including /dev/null terminators) will be less than or equal to this number. The current default
value for size is ARG_MAX - 2048.
-t Echo the command to be executed to standard error immediately before it is executed.
-x Force xargs to terminate immediately if a command line containing number arguments will not fit in the specified (or default)
command line length.
If no utility is specified, echo(1) is used.
Undefined behavior may occur if utility reads from the standard input.
The xargs utility exits immediately (without processing any further input) if a command line cannot be assembled, utility cannot be
invoked, an invocation of the utility is terminated by a signal or an invocation of the utility exits with a value of 255.
The xargs utility exits with a value of 0 if no error occurs. If utility cannot be invoked, xargs exits with a value of 127. If any other
error occurs, xargs exits with a value of 1.
SEE ALSO echo(1), find(1)STANDARDS
The xargs utility is expected to be IEEE Std 1003.2("POSIX") compliant.
June 6, 1993 XARGS(1)